{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "DNA", "RNA", "cell type", "protein"], "input": "In contrast, NF-kappa B p50 alone fails to stimulate kappa B-directed transcription , and based on prior in vitro studies, is not directly regulated by I kappa B ."}
{"cell line": [], "DNA": [], "RNA": [], "cell type": [], "protein": ["NF-kappa B p50", "I kappa B"]}